Stylographic pen



1. ABEGG. STYLOGRAPHIC PEN.

APPLICATION FILED APR. I9,v 1920.

Patented May SEI, will.

.IPI IIII I in I. l'-

UNT@ STATES tentant ort-ica JULIU'S ABEGG', OF WEST HOBOKEN, NEW JERSEY,ASSIGNOR TO GORDON PEN COMPANY, OF WEST NEW JERSEY.

YORK, NEW JERSEY, A CORPORATION OF NEW STYLOGRAPHIC PEN.

Lsraeoe.

Specification of Letters Patent.

ratenteri May ai, rear.

Application filed April 19, 1920. Serial No.V 375,104.

To all whom t may concern:

Be it known that I, JULIUs Annee, a citizen of the United States,residing at 101 Palisade avenue, West Hoboken, county of Hudson, Stateof New Jersey, have invented certain new and useful Improvements inStylographic Pens; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in stylographic pens of both theself-filling and non-self-fllling type.

The prime object of the invention is to provide a stylographic pensimple and cheap to manufacture, possessing very few parts with saidparts so constructed and assembled that no adjustments will be necessaryafter the pen has once been assembled, but at the same time providing avery simple and ready means of cleaning the pen whenever it may be foundnecessary.

Another object of the invention is to provide a means of establishingair communications between the different parts and the Y ink reservoirwhich will admit the necessary air for the even feeding of the ink, yetat the same time prevent any ink from leaking through thesecommunications.

A. further object will be apparent upon noting that the stylus or needleholder is definitely positioned with respect to the supplemental orVwriting point section, which will result in both the needle and writingpoint having always a uniform position relative to each other, and anywearing of these parts during the operation of the pen, will likewise beuniform.

Briefly stated, the improved pen comprises a ymain point sectionprovided with an axial cylindrical bore having positioned therein asupplemental or writing point section carrying at its outer end thewriting point, said supplemental or writing point section also beingprovided with an axial cylindrical bore in which a stylus or needleholder is adapted to be definitely positioned, preferably by africtional it. The supplemental or writing point section is providedYwith a diametrically enlarged portion and a correspondingly reducedportion, the re- Y larged portion is provided with longitudinalchannels, and circumferential grooves intersecting the longitudinalchannels. The longitudinal channels also extend up and for a shortdistance into the reduced portion, so that when'the supplemental orwriting point section is positioned in the main point section an aircommunication will be had between the sections. The needle holder isalso provided with longitudinal grooves forming ink feeding channels,and it will be noted that the inner end of the needle holder, when thesame is in position, will project some distance from the inner end ofthe supplemental or writing point section. The channels in thesupplemental or writing point section not only provide air vents, but byreason of the circumferential grooves, any tendency of the ink to liowor leak out through the longitudinal air grooves will be stopped orchecked by the circumferential grooves.

Tn the drawings Figure l is a view, partly in section and partly inelevation, of the complete pen shown in connection with a self-filler;

Fig. 2 is a sectiony on a line 2 2 of Fig. l;

Fig. 8 is a perspective view illustrating the construction of thesupplemental point section;

Fig. 4 is a cross sectional view of said supplemental section;

Fig. 5 is a perspective view of the stylus or needle holder;

Fig. 6 shows a modificationillustrating another means of securing thesupplemental or writing point section within the main point section; and

Fig. 7 illustrates another modification in which the main point sectionis formed integral with the end of the pen holder.V

Referring to the drawings in detail, the pen holder 5 which is providedwith the usual self-filling attachment 6, has positioned in the endthereof a main point section 7. This main point section is constructedwith a reduced portion 8 for the reception'of the conventional rubberink receptacle 9. The main point section 7 has an axial cylindrical boreprovided at the inner writing point with the threads 10 of the section7. The section 11 is constructed with a reduced portion 12, projectingoutwardly from the end of the main point section 7 and provided at itseXtreme outer end with a writing point 18. Longitudinally of thesupplemental kor writing point section 11 are arranged diametricallydisposed grooves or channels 14, formed in that portionv of thesupplemental section 11 contained within the main point section 7. A.continuation of these grooves 111, however, is formed on the reducedportion 12, so that air communication is assured between these twosections 7 and 11 when assembled. The portion of the supplemental orwriting point section 11 contained within the main point section is alsoprovided with circumferential grooves 15, intersecting and incommunication with the longitudinal channels 14, as clearly shown inFig. 3. v l

The supplemental or writing section 11 is also provided with an axialcylindrical bore 16, in which astylus or needle holder`17 is definitelypositioned, preferably by africtional fit, said needle holder providedwith a square shoulder 18, adapted to engage an annular shoulder 19,formed in the axial cylindrical bore 16 of the supplemental or writingpoint section 11 which will limit the outward movement of the needleholder 17 and form a definiteV and accurate positioning of the needle20, with respect tothe 13. The needle holder 17 is constructed withlongitudinal ink feeding grooves 21, and in the preferred constructionhas a tapered portion 22, formed on its inner end.

In the foregoing descriptionthe supplemental or writing point section 11has been described as being secured in themain point section Vby the useof screw` threads but if preferred the positioning of these two partsmay be accomplished by providing a frictional fit therebetween, asillustrated in the modification shown in Fig. 6. Likewise, the main.point section may be screw threaded as at 7b,Fig. 6 into the pen holder5 as distinguished from the construction illustrated in Fig. 1, whereinthe main point section is frictionally'. secured as at 7 to the penholder.

Fig. 7 illustrates another modification --in which the main pointsection is formed as an integral part of the pen holder 5, the end ofsaid pen holderr being .com

' structed to Vreceive the supplemental or v writing point section 11 ina manner iden` 4tical. with the construction show in Fig.

r1, wherein the main point. section 7 is Yformed as an additional part.These two modifications, as illustrated in Figs. 6 and 7, are intendedprimarily for pens of the nonself-filling type, where it is necessary tounscrew the main point section 7 of Fig. 6 or to note, however,

the supplemental or writing point section 11 of Fig. 7 for lling. Itwill be important that except for theV absence of connecting screwthreads in Fig. 6, the construction of the supplemental or writing pointsection 11 and the needle holder, and

the relation of the needle holderwith respect to the supplemental orwriting point section, is videntical in all of the modifications.

With a pen of this type, as above described, absolutely noadjustmentsare necessary after the various parts have'been assembled, aseach part has a definite and specific relation to its cooperating parts,thereby reducing to a minimum, liability offany disarrangement of thevarious parts vduring the use of the pen. By reason of thecircumferential grooves or air vents 15 in the supplemental or writingVpoint section 11, the possibility of leakage has been substantiallyeliminated as the said grooves or air vents will check'and trap the inktherein if there is any tendency of the samevto flow out through thelongitudinal` air vents or 4channels'l. In order to clean the writingpoint 13 of the pen, it isonly necessary to remove the supplemental orwriting oint section 11 from the main point section and work the needleholder back and forth within the member 11, which will quickly andefficiently remove any obstructions that might have lodged within thewriting point 13.

Vhat I claim is:- y 1. In a stylographic pen, the combination with a penholder-of a writing point section, a stylus holder definitelyVVpositioned in said writing point section and air vent communicationsbetween said section and stylus 2. In a stylographic pen, thecombination with a pen holder, of a writing point section, a stylusholder frictionally and definitely positioned in said writing pointsection and air vents in the writing point section communicating withsaid stylus holder.-

3. In a stylographic pen, the combination with a pen holder of a writingpoint section provided with an axial cylindrical bore, a stylus holderprovidedV with ink feeding grooves adapted to be frictionally and defi-Vventcommunications between lall of said sections. V Y 5. In astylographic pen, the 4combination witha pen holder of a main pointsection, a`

supplemental point section, fitted within said main point section andprojecting therefrom, a stylus holder provided with ink feeding grooves,carried by and definitely positioned within the supplemental pointsection, and air vent communications between all of said sections. Y

6. In a stylographic pen, the combination with a pen holder, of a mainpoint section, a supplemental point section, fitted within said mainpoint section and projecting therefrom, a stylus holder provided withink feeding grooves, carried by and definitely positioned andfrictionally fitted Within the supplemental point section and air ventcommunications between all of said sections.

7. In a stylographic pen, the combination with a pen holder of a mainpoint section, a supplemental point section having a diametricallyenlarged portion and a correspondingly reduced portion, said enlargedportion adapted to be supported wholly within the main point section, astylus holder provided with ink feeding grooves frictionally positionedwithin the supplemental point section and air vent communicationsbetween all of said sections.

8. In a stylographic pen, the combination with a pen holder of a mainpoint section provided with an axial cylindrical bore, a supplementalpoint section also provided with an axial cylindricalbore and adapted tobe secured within said main point section, a stylus holder having inkfeeding grooves frictionally secured within said supplemental Sectionand definitely positioned with respect thereto and air ventcommunicationsl between all of said sections.

9. In a stylographic pen, the combination with a pen holder of a mainpoint section provided with an axial cylindrical bore, a supplementalpoint section provided with longitudinal channels and intersectingcircumferential grooves and an axial cylindrical bore, said supplementalsection adapted to be secured within said main point section and astylus holder having ink feeding grooves frictionally and definitelypositioned within the bore of the supplemental section, said channelsproviding air communications between all of said sections.

10. In a stylographic pen, the combination with a pen holder, the end ofwhich is adapted to form a main point section provided with an axialcylindrical bore, a supplemental point section also provided with anaxial cylindrical bore adapted to be secured within said main pointsection, a stylus holder having ink feeding grooves frictionally securedwithin said supplemental section and denitely positioned with respectthereto and air vent communications between all of said sections.

In testimony whereof I ailix my signature.

TULIUS ABEGG.

